Deep Gnome TerramancerDeep Gnome Terramancer, Knight of the White OrchidKnight of the White Orchid, and Kor CartographerKor Cartographer all search for PlainsPlains cards , so they can fix our mana as well as ramp
The context they created was hostile to Jace, so Jace wasn't able to thrive
+1: Up to one other target creature you control gains your choice of vigilance, lifelink, or indestructible until end of turn
Funnily enough, though, the toughness boost makes it harder for red decks to kill
Ice Age introduces a type of card that are termed by the fandom as 'cantrips', which are spells that cost 1 mana, draws you a card, and does something extra
Its primary job is making Treasures to ramp us into Push the Limit, but if we're light on Vehicles we can use it to draw cards to find them (drawing two when we cycle is super powerful) and if our graveyard gets locked down we can can use the drain mode to try to win the game